Square Enix has opened up voting for Final Fantasy XIII-2's AKB48 download costume. Access the voting page and vote on the two options.

Do keep in mind that there's a tiny possibility that the girl at the site, Yuko Oshima or whatever her name is, will be forced to wear this outfit in the flesh on a cold December morning for the official Final Fantasy XIII-2 launch event. By reading this story you agree to vote for the skimpiest of the two outfits (which I believe may be the red one, although it's really open to interpretation).